Printing mechanism for tabulators



W. WOCKENFUSS PRINTING MECHANISM, FOR TABULATORS Original Filed March 4, 1948 July 31, 1951 10 Sheets-Sheet 1 R I IN V EN TOR. William Wockarlfm BY 0/ 2 1977mm July 31, 1951 w. wocKENFuss 2,562,253

' PRI'NTING MECHANISM FOR TABULATORS Original Filed March 4, 1948 10 Sheets-Sheet 2 IN V ENI'OR. lfillim Wockazdkms',

ATTORNEY July 31, 1951 w. WOCKENFUSS PRINTING MECHANISM FOR TABULATORS Original Filed March 4, 1948 10 Sheets-Sheet 5 July 31, 1951 w. WOCKENFUSS 2,562,253

PRINTING MECHANISM FOR TABULATORS Original Filed March 4, 1948 10 Sheets-Sheet 4 I N V EN TOR. llfizkenfass,

ZTTMNEY w. WOCKENFUSS PRINTING MECHANISM FORITABULATORS origin-a1 Filed Iar9h'4, 1948 10 Sheets-Sheet 5 July 31, 1951 INVENTORQ Wmkenl'ufli,

July 31, 1951 w. WOCKENFUSS 2,562,253

PRINTING MECHANISM FOR TABULATORS Original Filed March 4, 1948 l0 Sheets-Sheet 7 Fly? 0.9

IN VEN TOR. llfilliam Wodrenfuss;

July 31, 1951 I w. WOCKENFUSS 2,562,253

' PRINTING MECHANISM FOR'TABULATORS Original Filed March 4, 1948 1O Sheets-Sheet 8 IN VEN TOR. Mlljam llbckenfiqm BYFM/M July '31, 1951 w. WOCKIIENFUSS PRINTING MECHANISM FOR TABULATORS l0 Sheets-Sheet 9 Original Filed March 4, 1948 July 31, 1951 w. WOCKENFUSS 12,562,253

' PRINTING MECHANISM FOR TABULATORS ori inal Filed March 4, 1948 Shets-Sheet 1o WWW UPPER TRANSFER UNIT #7 o gWWWWWWWW /80 PRINT surmsssaou mmcxraoum 8/ AND a- PRINT IE2 TYPE BAR zummnou Ia; INDICATION (B) "I'UTAL PRIN'ISUPPRESSION LOWER TRANSFER UNIT HIHHIIIIIIHI-IIIIIIHIHHIIIHHI ADDIN G- SUBTRACTING I: NEUTRAL CONTROLS FOR ACCUMULATORS IN V EN TOR.

HJ'TOM \s 50 as m 1% L97 as Patented july 31, 1951 PRINTING MECHANISM FOR TABULATORS William Wockenfuss, Union, N. 1., assignor to Control Instrument Company, Inc., Brooklyn, N. Y., a corporation of New York ori inal application March 4, 1948, Serial No.

1949, Serial No. 113,261

15 Claims.

.This' invention relates to improvements in record controlled tabulators' and has particular reference to a printing mechanism therefor, the present disclosure being a division of my cope'ndi'ng application Serial No. 13,017, filed March 4,1948.

.An object of the invention is to .provide an improvide mechanism wherein the type bars of the 'tabulators are variously controlled, during the total-taking cycle and in conjunction therewith, to effect such operations as type bar elimination, sub-total print suppression, the printing of group indications and of designations representing the types of totalsbeing taken.

,The above and other objects will appear more cle'arlyifrom the following detailed description when'tak'e'n in connection with the accompanying. drawings which illustrate a preferred embodiment of the inventive idea; but it is to be expressly understood that said drawings are employed merely for the purpose of facilitating the description of the invention as a whole and not to define the limits thereof, reference bein had to the appended claims for this purpose.

In the drawings:

Fig. 1 is a fragmentary isometric view showing portions of i the analyzing and change of designation mechanisms in conjunction with the upper and lower transfer units and the printing mechanism controlled thereby;

Fig. 2 is a front elevation of the printing section of the tabulator with parts broken away;

Fig, 3 is a transverse section through the printing section on the line 8'8 of Fig. 2;

fFi'g.i4 is a section on the line 99 of Fig. 3;

Fig.5 is a section on the line llllfl of Fig. 4;

'Fig; 6 is a fragmentary elevation, partly in section, of the control mechanism for the upper, sub-total accumulators; I

Fig.7 is a similar view ofthe control mechanism for the lower, grand total accumulators;

Fig. 8 is a fragmentary plan view, partly in section andtaken on the line lc-l0c of Fig. 4;

' Fig. 9 is an enlarged section on the line I Il l of Fig. illustrating the control mechanism for the auxiliary section of the upper transfer unit;

Fig. 10 is an elevation, partly in section, of the mechanism shown in Fig. 9, with parts in their operated positions;

,Fig'. 11 is a horizontal section on the line 13-43 ofFi .5;T

Fig. 12 isa lan view of the left portion of Fig. 4;

Fig. 13 is a fragmentary isometric view of the control mechanism for the auxiliary section of v the upper transfer unit;

i-LFig. 14 is an elevation of a portion of the hammer control mechanism;

Fig. 15 is an elevation of a portion of the accumulator operating mechanism;

. ing a reciprocating frame 2.

cludes a sensing pawl 223 for each row of pins Divided and this application July 21 Fig. 16 is a diagrammatic view of the upper transfer unit and certain associated parts; and

Fig. 17 is a similar view of the lower transfer unit.

The drawings illustrate only so much of the co-pending application for a complete disclosure Thus, in Fig. 1, the numeral of said mechanisms. :04 indicates'the sensin 'pins which are carried.

in a lower vertically reciprocating pin box at each of two analyzing stations as cards are fed thereto and at which comparison is made be-' tween the cards at said stations to determine whether the card feed is to proceed or a totaltalring cycle is to be'initiated, it being understood that there is a row of said pins at each station for each column of a'card to be analyzed. At each station, rows of analyzing pins'l H mounted in upper stationary pin boxes are elevated by those pins 104 which sense perforations in a' card and, at the one station partially shown, an

additional control pln' I H. in each row and having an extension l3 thereon is adapted to be elevated by its associated pin'lM, when sensing a control hole in a card, to actuate a lever Hi5 carried by an oscillatory bail 229 mounted on-a shaft 230 so as to operate an aligned cross bar [3? of the lower transfer unit generally indi-' cated in dot and dash lines'at I33, as will more The elevation of said fully appear hereinafter. pins H l is sensed by a scanning device compris- II I at each of the two analyzing-and comparing stations, and when said pawl is tripped by an elevated pin it is caused to engage one of theteeth 224 of a slide 225, whereupon continued starting position, it engages the lips 228 of any slides 225 which have been advanced and returns these'slides to the position shown.

Rocking of the lever 226 is also utilized to control a change of designation mechanism by which the card feed is stopped and a total-taking cycle is initiated when cards being sensed at the Said device instations are operated simultaneously bycorree spondingpins Ill thereat, whereas if the cards do not compare, the pawls 223, and consequently their slides 225 and associated levers 226, are

operated successively and this results'in the ini-- tiation of a total-taking cycle in. conjunction with which the operations ofithe present invention are accomplished. Each pair of levers 225 (only one of which is shown) at the two analyzing stations, when rocked either simultaneously or successively, operates a pair of "bell cranks 243 and the latter elements carry spring urged pawls 245 with which is associated an analyzer controlled slide 241 that responds to the operation oftsaid pawls with primaryand secondary movementsin the same direction, only the secondary movement occurring when there is a change of designation. At each end of said slide the same.

is providedin its lower edge with a pair of teeth 2,48,; 249, the former of which are. engaged'by the .two paw1s245 at the two analyzing stations.

durin normalcondition of. the. control mecha-. nism, andalso. during the primary movement of theslide 241 if both said pawls are operated simultaneously. The upper edge of each slide is provided with elongated slots 250, 25! with which areassociated, respectively, the actuatingv members 252 and 253. in the form .ofa pair. of spring urged levers that normally assume the positionshownin the drawing. in which their outer extremities are out of. the slots 250, 251. Said 1evers,-, when actuated in a manner to presently appear, each controls aswitch, shown in said copending application, by means of which the operation. of the change of designation mechanism isinitiated to causethetaking of oneof two typesof sub-totals which arehereindesignated asAandB.

To. establish a predetermined set-up in the change of designation control. mechanism with respect to two or. more difierent fields of the cards which are allottedfor Aand B totals,

thereis provided a selector device for each pair of actuating members 252, 253 and which comprises a slide-262 individual. to one .of thecard columns. Eachislide has a key 263 by means of which it may, be. adjusted, from the. neutral position shown, to. the left or right depending. upon whether the'card. column to which the slide is individual. isin a field from which A or B totals,

respectively, are to be taken; Each slide262 is.

provided on its lower. edgewith a. guide lug 265 and a projection. 263,. the latter engaging. in a.

recess in a'rocker member 261 mounted forrocking movement, togetherwith similar members,

ona common shaft 268. The two lower extremities, of the rocker member 261engage theinner adjacent ends of the associated levers 252,253 andcontrol thepositions of said levers with respect-to the slots 250,25! in the slide 241.

In adjusting the selector device preliminary to amachine operation, if the slide 241 assigned to anygcolumn. of a card is not to be. involved in the taking of anA or B total, itsassociated slide v262 remains in, or isadjusted to, the neutral position sothat the rocker. member 261 and the levers 252, 253 will assumethe position shown wherein said levers will be unaffected byeither theprimary or secondary movements of .theslide 241,

which movements are under the influence of .the slides 225 at the two analyzing stations. To .ad-

just said slide 241 for the taking ofan A-totaL, the cor-responding key 263- is shifted toxthe--left,.

thereby rocking-the :member 261-counterclockwise to depress the inner end of the lever 252 and release; the corresponding end of the lever 253 whose outer end then enters the right hand extremity of the slot 25l in the slide 241. From this it will be apparent that an adjustment to the right hand position of the key 263 associated r in-the two slides 225, with ,the result that .said

slides will be moved from their normal positions at the same. time and thus simultaneously rock the bell cranks243; This operation causes the pawlsx2'fl5 to impart only theprimary movement. to the slide 241 against the tension of its return;- spring 269. With the outer end of one orthe other levers 252, 253 in the right'hand' extremity, of its associatedslot250pr 25l, the latter are 01.; such length that; at the conclusionof said pri-' marymovement; the left hand extremities of said" slots will only reach, but will notmove, thelevers: 252, 253 and, therefore, neither of the levers will" be operated) to close their associated and pre viously mentioned switches. Should non-corresponding pins at the two analyzing stations be elevated, indicating a change of designation of" the cards, either one or the other of the pawls. 223' will .be raised first'to operate its slide 225' with the result'that the associated bell crank 2431' willibe actuated to cause its pawl 245 to move. the slide 241' through its primary; movement; Theotherpawl 245 not then actuated; will en-- gage the associated, second tooth 249 of said slide preparatory to moving the latter through itssecondary movement when the bellcrank onwh'ich said other pawl is mounted'is operated by, the. liftingpf theother pawl 223 when it comes in contact with oneof the pins Ill following the. operation of the first .of said latter pawls. The secondary movement of the slide 2 l1'willv actuate a lever 253' or 252, dependingupon whether an. A orB total 'is to. be-taken, and the actuation of said leverjwill result in the closing of the associated switch to thereby stop the card feed .sec-' tion ofrth'emachine for one cycle and initiate .a

totaletaking operation in.th'e manner fully described" inth'e parent' application. Upon conclusion ofthe described operation and whilethe; scanning ,frame 2| I is being,,restored'to its starting'position, the restoringbail'210 is reciprocatedLin timed'relation with themovement of" said frame-t0 tripthe pawls 245 so as to. disengage 'themirom the teeth of the slide 241wh'ich then restores to its normal position underth'e in-.

fluence ofits'spring 269. It will now be apparent thatth'e' taking of an A or B total will'be controlledfrom. either ofzthe two analyzing stations, depending upon the relative positions ofv the ele-.'

vated pins III at said stations and. also upon the pie-selection of either of the levers 252 or 253. for operative association with the slide 241.

Transfer units The pins III, H2..of the analyzing stationxfrag? mentarily shown in Fig. 1 are: designed; respece tively; toicontrol the operations. of. the upperand lower transfer units I32; I33, whichunits are. slidably; mounted between the: walls 35 and '31 so that the sameemay;be:withdrawnuoutwardlyfi and opened for the removal and insertion of different set-up devices each individual to a particular type of report analysis and each of which controls the operative and inoperative positions of thelower sections of the rows of sectional transfer pins generally indicated at I34, I35 in the respective'units. The previously mentioned actuating bars I36, I31 associated, respectively, with the upper and lower transfer units have only linear movements responsive to the elevation of the pins III or H2 and each set of bars I 7 I36, I31, in which there is a bar for each card column, is carried in a" frame I38 secured-betweenthe walls 35,31 and each bar is, as best shown in Fig. 1, connected by links I39 to an associated transfer pin elevating bar I46 in such manner that a linear movement of a bar I36, I31 will impart to its bar I40 a practically direct upward movement. Restoration of the bars I36, I31, and therefore the bars I40, may be accomplished by springs I4I, connecting each pair of bars and, in order to provide a more positive restoration to insure that none of the bars I46 in either'set will be in the path of horizontal movements of the transfer pins I34, I35 when either transfer unit I32 or I33 is withdrawn outwardly from its operative position, restoring bails I42 and I43 located at the left hand extremities of said bars I36 and I31 are adapted to be operated, in a manner to later appear, to reverse the initial linear movements of said bars to return them tonormal. In so doing, the links I39 will operate to; positively lower both sets of bars I46 so thattheir upper edges will be below the lower extremities of the transfer pins in the respective units. I32, I33 with which they are associated. The restoration of the actuated bars I36 to normal-will cause them to also restore the bell cranks I44 and their associated levers 226, this restoration occurring after the scanning frame ZIIhascOmpleted its secondary movement and has returned to its starting position, as previouslydescribed.

: Main type bar control by transfer units Cooperating with the lower bars I36 of the upper transfer unit I32 is a set of control bars I46'arranged in crossed relation to the bars I36, I40; there being one bar I46 for each of the vertically movable type bars I41 in the machine, and each bar I46 is located directly over and in contact with a column of pins I34 so as to be elevated by any active pin in said column when the lower bar I40 engageable with said pin is raised.- The elevation of a bar I46 takes place immediately upon the sensing of a hole in a card a t the analyzing station partially shown in Fig. 1; and during the upward movement of the type bars I41. Elevation of said bar I46 disengages it'from the associated type bar-arresting pawl I48 so that the latter will, under the influence of its spring I49, engage the proper tooth I56 of its type bar so as to arrest the same in posi-- tion to print the value represented by said'tooth when the printing mechanism of the machine is operated. Each bar I46 is connected by links I5I to a slidable bar I52 having a spring I53 thereon which is-compressed by the elevation of said bar I46 and the resulting sliding movement of the bar I52, and said spring later acts to restore the bars I52 and I46 just prior to the restoration of the-pawl I48 by an oscillatory bail I54 upon which the adjacent ends of the bars I46 rest and which is common to all said pawls. To ina sure a more positive lowering of the bars I46, a vertically movable bail I55 common to and located above said bars and co-acting with the springs I53, is lowered at the proper moment in the cycle of operation to engage and force said bars downwardly to the position in which they will be engaged by the pawls I48, which have already been restored by the bail I54, to withhold said pawls from the teeth I56.

A similar arrangement for the lower transfer unit I33 includes the upper cross bars I56 en-. gageable with the transfer pins I35 and which.

control, by their elevation under the influence of said pins, the release of the lower type bar-arresting pawls I51 for engagement each with the tooth I56 at the lower end of its associated type bar, and each of said bars I56 is linked to a bar I59 similar to the bars I52. to the bail I54 and operated therewith, restores all operated pawls I51; and a bail I6I, like the bail I55 and also operated therewith, provides for the positive restoration of the lower control bars As shown in Figs. 1 and 2, the restoring bails I42, I43, I55 and I5I are all controlled from the secondary cam shaft I62 geared to the main cam shaft 56 and which carries adjacent its upper end a cam I62a that operates a lever H521),

and when said lever is operated it shifts a slide raised at the conclusion of the restoring operation and thus reverse the movements of the slide I63 and lever I622). Abutments I16 and I1! on one of the arms I61 turn the shafts I12 and I13 which carry, respectively, the bails I42 and I43 so that the latter will be operated to restore the bars I36 and I31 when the frame I66 is lowered. Upon upward movement of said frame, the shaft I13 and its bail I43 are restored by a spring I14 connected to a crank I15 on one end of said shaft,-

and the shaft 512 and its bail I42 are restored by a similar spring urged crank I16, shown in dotted lines in Figs. 3 and 4.

The oscillatory restoring bails I54 and I66 for the type bar pawls I48 and I51 are controlled from the counter shaft I; (see Figs. 4 and 5) which is journaled in the walls 35, 31 and 31a and is geared to the upper end of the cam shaft I62. A cam I162: on the shaft I16a causes the rise and fall of the arm I160 secured on a rock shaft I16f and having its free end joined to thedepending links H661 and I168 connected, respectively, to the extensions [54a and Ififia of the balls I54 and I66. rock said bails to restore the pawls I48 and I51 at the instance before the vertically movable bails I55 and I65 operate to lower the controlf 'bars I46 and I56 to thus enable the latter to re-'-' engage said pawls to retain them in non-arrest-- ing position until the next cycle of operation.

Auxiliary controls by upper transfer unit Thus far, it is apparent that with respect to the upper transfer unit I32, the number of analyzer controlled bars I36 associated therewith is equal to the number of columns in a card and that there is a control bar I46 for every type bar I41,,which bars I36 and. I46 are utilized for A bail I66; similar Links I55 This assemblage operates to the-ii'transmission of data interpreted from'thecardszby'the analyzer-unit. It will also be understood that, withinthe: transfer unit I32, there isflaisectionaltransfer: pin. I34 at each point of intersection". of. the crossed bars I36, I46; which pinszare adapted to be adjusted 'to operative or active position or permitted. to remaininoperativerun'der the control of 'the set-up' device or plate previously-mentioned and shownat I11 in Fig; 3;

Referring-now to Fig. 16 wherein a card I18 is shown in: association with the upper transfer unit so. as to illustrate the actual relationship of the parts during the machine operation, and inwhich someof the parts thus far described are 'ilh'istrated. diagrammatically, it will be seen thatgin addition tothe bars I36-whiclrare associatedwith' the-main section of said unit, there is-providedan auxiliary, control section including two-groups of similar bars I 19, I 80; I 8:I :and I 82; I83, I84 (see also Figs. 2, 3 and 13) which operate:.-with crossed. bars I48--to effectyarious functions designated in Fig. 16' in connection with the control of the typeabars during atotaltaking-cycle and inaccordance with the dispositionof activated'transfer pins I85 (Figs. 3 and 13) along said bars'I19 to I84-at points of inter-- sectionof the-crossed bars I46 therewith. The mechanism shown in Figs. to for operating the-bars I19 to I84 to control the various functions will be later described, it being sufficient at' this point to'briefly setiforth the manner in which said functions are initiated through the upper transfer-unit.

Thebars I19 and-I84 are assigned, respectively, to. the suppressionof thezprinting of two classesv of sub-totals A and B by the: type bars allotted for-this purpose. By activatingpins I85 resting u-pon bars: I86 at the intersection of said bars I19 and I84 with the cross bars I46-individual to said type-bars, theoperation of .eitherof said bars I18 or'l84 at the beginning of a total-taking cycle and before the typebars start upwardly, willresultin the operation of those bars I46 located above the activated pins I85- andthe consequent release of the associated pawls. I48 whichthenengage the uppermost teeth E50 of their respective type bars to suppress thesame to thereby prevent printing of a total, and also' avoid clearing of the associated accumulators.

-Groups of typebars which are employed to print code designations, also known as group indications, maybe suppressed in the same manner as above by'activated pins I85 at the intersection of the bars I80 and I83 with bars I46 individual tosaid type bars. .The bar I80 .controls a group of type barsassigned to the printing of code designationsrelated to agroup or groups of accumulators allotted for the taking. of A totals, while the bar I83 controls those type bars that printcode designations associated with a group or groups of accumulators assigned to theta-king 08B totals. The mentioned suppression operation is.accomplishedafterthe firstlisting cycle of the machine during which a code designation isprinted, and such suppression continues-until a changeof. designation andconsequent totaltaking cycle occurs. Then, during the following listing cycle, a code designation of different value will be printed and theabovesequence repeated.

Bar I8I is utilized to effect the. printing of sub and. grandtotal designations 'T: and. G, re-- spectively, in conjunction with the. active group or groups of accumulators, by the activation. of a pin I85' for each accumulator group at the intersection ofisaid bar I8I-with the'bar I46 individual to the type bar assignedv tosaid accumulator group for theprinting of said designae. tions. The control of said bar I8I is such that. it is operated in timed relation to the upwardmovement'of said type bar so that said bar. I46 will be actuatedto release its pawl to engage. thetype bar tooth I50 assigned to the particular. total designation to be printed.

Type bar elimination in the upper transfer unit is accomplished during both listing andtotaltaking cycles by rendering active those pins I at the intersection of the bar I82 with the-bars). I46- associated with the type bars that are to be eliminated. Again, as with the bars I19; I84, the. bar I82 is operated before the type bars start their upward movement so that the pawls I48 individual to the type bars to be eliminated will. bereleased by the bars I46-to engage the upper-.-

.most'of the teeth I50 in each of the type bars..

Other control functions besides those enumerated above may be accomplished by the addition of more bars similar to the bars I19 to I84.

Auxiliary controls by lower transfer unit In connection with the lower transfer unit 138,, as illustrated in Fig. 17, it is apparent from the: foregoing description that when an Xholeiap pears in any column-of the card, itwill cause: the actuation of the bar I31' in said unitlwhichl is individual to said column. this being: acc0m=- plished through the operation of the. control pin": II2 individual to said column an'd'bar, which pin operates the associated. lever I45; Atthe I w. intersection of said bar I31 with the crossed coir-.

trol bars I58 assignedto the type bars which; are: to be suppressedlby the appearanceof said: X'hole, transfer pins I35 are.rendered-operative? by'the set-up plate I81 (Fig. 3) so thatw-hen'i asaid bar I31 is actuated'it will elevateall saidli operative" pins and thus. cause the control'bars; I56 thereabove to be operated to release their: respective pawls I51 to engage the teeth I58and thus prevent said type bars from moving'up- Wardly.

In addition to the group of bars I56 whicheare each individual toone of the type bars, there-area provided other groups of accumulator control bars; I88 and.l89 '(Figs. 1 and 17) similar to the .bars: I56, and all under the control of X-holes'in thecard columns, said bars I88 and I89 being linked:.. to bars I90. Only two such bars I88 and I89 are. shown in Fig. l at opposite ends of thelarge group containing the bars I56 but, actually, thereare two groups each containing three of said bars I8II,-, I89. One of these groups I89, as illustrated in Fig. 17, is arranged nearest the analyzing section of the machine while the group I88"is similarly' arranged 'on the opposite side of the large groum I56. Said six bars:I88; I89-are utilized-to dif ferentially control groups of the paired upper andt. lowersub-total and grand total accumulatorsIB-tand I92, respectively, by causing their adjustment: to adding, subtracting "or neutral positions. The; adding positionKFig. 3) of the accumulators-in. anyone group prevails as long as no -X hole: ape" pearsin a card. To attain the subtracting posttion of the accumulators in saidgroup or any? other group, an X hole can be punchedin anyone? ..of the. columns of the'card and said. hole will! 7 5; tral position. The subtracting and neutral auto.

bars I31.

matic controls are effected by the bars I88, I89 ;by rendering active, through the set-up plate 5181, certain transfer pins at the intersection of .,said-bars I88, I89 with the bars I31 individual to the card columns in which said X holes are located and,'in such instance, no operative pins will appear at the intersection of said bars I31 with the .bars I56 unless it is desired to suppress the .typebars associated with a group of accumulators that is being adjusted to neutral position. In

:-the latter case, active pins at the intersection of bars I56 with the same bar I31 controlled by an X hole and used to effect the neutral adjustment, will. produce suppression of the desired type bars,

in Fig. l'7 atI93, I94, I95 and I96, I91, I98. Said balls are structurally illustrated in Fig. 1 a extending across the accumulator section of the ma- ;chine-directly above the front portion of the lower transfer unit I 33 and each pair of bails I93-I'98,

I94--I91 and I95, I95 is assigned to one group of accumulators. Positioned above the bails I93, I 94 and l95'at one end of the transfer unit I33 is a vset ofthreelocking interposers I99, 200, 20I each .--individual to one of the latter bails and provided with. aLlug 202, represented in Fig..l'1' by a dot,

which normally rests upon its bail to prevent upward swinging movement thereof. Said inter- ;posers are actuated, or not, depending upon the operation ornon-operation of their associated :bars I 88andthe condition of these bar is, in

turn, dependent on the active or inoperative positions of transfer pins 203 which, like the pins I35, are under the control of the set-up plate I81 and are the pins previously mentioned which are located at the intersection of the bars I88 with the Similarly, above the other end of the transfer unit I33, there are three locking interposers 204, 205 and 206 provided with lugs 201 individual, respectively, to the bails I96, I91 and r I98 and actuated, in the same manner a the first named interposers, byv the bars I89 under the coni trol of active transfer pins 208 which are the other previously mentioned pins at the intersection of said bars I89 withthe bars I31. The pair of interposers 20I, 206 automatically controls the pair of bails I93, I98; the intermediate pair of interposers 200, 205likewise controls the bail I 94,

A91; and the interposers I99, 204 similarly control .thebails I95, 196. These controls determine, by the relativepositions of the interposer of each 1 203, 208 which automatically and variably control the positions of the two sets of interposers, the

' unit I33 has the six rows of transfer pins 209 (Fig.

3) arranged in two groups extending longitudinally of the bails I93 to I98,-with each row being associated with one of said bails and having therein a pin forfeach set :of accumulators I 9|, I92, and said pins, 209 are also rendered operative or .remain in their normally inoperative positions under the control of the set-up plate I81. The six rows of pins 209 thus provide a column of six pins for each set of accumulators, and wherever the sets of accumulators of any group thereof are be diiferentially controlled, two pins in each column assigned to each set of such accumulators in said group are rendered operative by the plate I81, while the remaining pins in said column are left inactive. Thus, with the bails I93, I98 assigned to one group of accumulators for the automatic and differential control thereof, the two pins 269 in each column associated with the sets of accumulators in said group and located below said bails, will be made operative by the plate I81.

As long as no X hole appears in a card to operate either of the locking interposers 20I and 299 individual to the respective bails I93, I98, said interposers will engage their bails by means of the lugs 292 and 201, respectively, to prevent upward swinging movement of either bail under the influence of a vertically movable feeler and accumulator control member 2I9 (Fig. 3) asso ciated with each set of upper and lower accumulators. Each member H8 is rockingly supported so as to assume three positions for differentially controlling its set of accumulators. When in its vertical position, said member will adjust the accumulators to their adding position; when rocked clockwise, it will adjust the accumulators to subtracting position; and when tilted in the opposite direction, it will cause said accumulators to assume their neutral position. Therefore, with the above mentioned condition existing in which no X hole appears and wherein neither interposer 20I or 208 is operated to unlocking position by its associated bar I88 or I89, when the feeler 2m rises during each machine cycle to contact the two active pins 209, the latter will combine with the locked bails I93, I98, to form a rigid abutment and said member 2I0 thereby will be caused to assume its vertical or adding position. If, however, the interposer 20I (Fig. l) is operated by an active pin 293 beneath the bar I88 associated with said interposer, the latter will be moved forwardly to its unlocking position with respect to the bail I93 to release the latter for upward movement and, with the interposer 299 over the bail I98 remaining in its locking position because of the absence of an active pin 20% under the bar I89 which'controls said interposer 2%, it will be apparent that as the feeler 2I0 contacts the two active pins 299 assigned to each set of accumulators in the group under discussion, the pin under the bail I93 will be raised to swing said bail upwardly, while the other pin 299 will be held stationary by the locked bail !98. Consequently, the feeler 2) will be turned clockwise to shift the associated set of accumulatorsto subtracting position. As will now be obvious, the third or neutral position of each set of accumulators is attained by reversing the above described positioning operation of the two interposers 20I and 206 to retain the bail I93 locked and to release the bail I99 for upward movement.

In like manner, the sets of accumulators included in the other two groups may be automatically and differentially controlled by rendering active two pins 209 in each of the columns assigned to said accumulators, with said ins for one group of accumulators positioned under the pair of bails I94. I91, and those for the other group located beneath the pair of balls I95, I96, and with saidpairs of bails being controlled, respectively, by the pairs of interposers 200, 205 and I99, 294.

It will be noted that the bails I94 and I95, at their left ends (Fig. l) are provided with longitudinally ofiset notches 282a, and that the *bails I-Bl *and I98; at'their right-ends; have similar notchesEll'Ia. When the interposer 20I is "advanced to unlocking position-with-respect to the'bail I33-during thecontrol of one'group of accumulators, as'hereinbefore described, the lug 57 -262 on saidinterposer will" be vertically aligned with-the notch 202a in the-bail I94. Thisalignment frees the bail'l94 for'upward-movement in the control of a second group of accumulators simultaneously with the first named group in the event that the'interposer 200 is advanced to disenga e its lug 202 fromsaid bail I94. In the latter event,*the lug "202 on the interposer "200 will be vertically aligned with the notch 202a Till the bail I95 so that the latter will also be *f'ree'for upward movement shouldthe interposer I 99 be advanced to disengage its lug 202 from said bail I95 in the control of a third group of "accumulators simultaneously'with either or both of the first two mentioned groups. Similarly, at the right end of the bails, advancement of 'the interposer 204 will vertically align its lug 20'! with the notch 201a in the bail I91 to free the latter for upward movement should its controlling interposer 205 be advanced, and atlvancement of the latter interposer will align its 'lug201 with the notch 201a in the bail I98 in order to permit upward-movement of the latter bail should its'interposer 206 be advanced.

Operation of auxiliary control section of upper I transfer unit :Referring particularly to-Figs. 5-to10 and 13, :theoperation of the previously mentioned bars I19. to I84, the left ends of-whichextend through .a-sloti219in the wall 31, has its origin on the vertical cam shaft I62 on which are mounted three cams 280, 28I and 282zf0r rocking the follower levers 283,.284-and 285, respectivelmduring eachcycle-of operation. 'As will presently :appear in detail, the cam 280 and:its lever 283 control the previouslydescribed suppression of .,.printing of A and B totalsthrough the bars I19 and I84, the A and B group indications through ,the-bars I80 and I83, and thetype bar eliminavtion through the bar I82, and the angularly dis- -;-placed cams 28I and 282 :and their levers 284 stand 285 control at different intervals, respecv tively, the printing of G and T designations through the bar I8I.

The operating mechanism responsive to the variousmentioned cams for actuating'the bars -,.I1.9: to I84 comprises a framework consisting'of a stationary base plate-286-attached-to the wall 31 .and an upper supporter plate '281 connected, by ,fourlinks-ZBB, to theplate-286 for slight reciprolcatory movement toward-and away from said bars. This motion occurs during 'every'cycle'of :the'machinewhile thecam shaft I62 is being driven and is accomplishedby engagement of one .end of the lever 283 with one of the links 288, as best shown in Figs.-9 and'10. A spring 289 connects aibracket 29Il-secured'to the plate 286 v withone of thelinks 288 toeffect the return -=motionof the framework after it has been moimentarilyadvancedby the 'cam 280 and lever 283=toward said bars I I9 to I84.

An operating arm 29I for the bar I8I, which is the barthat controls the printing of the T and G- designations, has its lower end pivoted at.292 to the base plate 286 and its upper end disposed in alignment with said bar I8I so as to'actuate the I-latter when said arm is advanced, either under the-influence of "the "cam 28I and its lever 284 "when: a G designation isto be printed -or by the by the bar I8I in'the manner previously-ex- =plained. A spring 293 connecting the bracket 290 withthe arm 29l restores "the latteruafter it has been advanced, 'and this restoring :rnovement islimited by-a'set screw29l'threaded i n the'bracket-290 and engagingthe -projection izfi on-said arm 29L iThe dual' control :of -thebar Y I 8 l for T 'arrd G printing during total-taking cycles is efEected=*-by twov independently and vertically movableinterposers 2'96 an'd' 291 (Fig. 13) arrangedon opposite sides of the arm 29| andhaving: slotted connec- :tions 298: therewith so 'as'to guide the interposers *in their vertical movements. Theupperendfof the interposerl2'96 has a lateral extensionxif299 normally disposed slightly above-and projecting in an opposite directionfrom a ,similarextension 300" on the interposer' -29I. I'In thelower normal position'of'the interposer 296 '(Figsjz' an'd 5) ,ilts .extension1299 is not in the: path of movement-of .the adjacent end 'of the lever zsmwmcn-wxn then pass over said extension upon: advancement of the-framework, but when said interposer-is raised, as'showninFig. 10; the lever284, when operated, will contact the extension and,- through :the connection of :the: interposer with the arm i29l,"the' latter will be advanced with said-framework and 6 thus operate? the bar I'8 I to cause the =arre'stingof a "type: bar at' the proper-position for "printing a 'G designation. isimllarlyfbut'ate'a different time in the machine :cycle, -when 'the interposer 291 is raised, its =extension 3fl0'will be projected-I into-the path of the adjacent'extremlty of the lever'285,resulting in-the-sa-me operation :of the arm 29Ifand bar I'8I-to'cause' the printmg -of a 'T- designation. 'The; high points or the two cams: 28 I and 282 which" control 'the operations-of the'bart29l are angula'rly displacedso-that=said arm is operated-at different instants in the-cycle to thus arrestithe type bar in "different positions for the printing of the'T andG designations,

For raising the interposer "296 "to operative position at the beginning of 'thegran'd total taking cycle which is initiated by'depressingagrand total-key (not shown), there is provided a 'G- *printsolenoid 30I (FigsJS-and 10) whosecoreis connected to one end of a lever 302, to the other end of which is attached arestoringspring-SM. An arm'304mounted on the pivotof' saidlever 'and movable therewith, is connected to the lower end of the interposer 296 so as to raise'the latter upon energization of said solenoid. A T- print-solenoid 305-automatically energized at the beginning of atotal-taking cycle, is similarly connected, through'the lever 306*andarm 3064;, to the lower end of the interposer 29'I-toraise the same,andsaid'interposers 296, 291 are lowered, upon de-energization of their respective solenoids by the springs 303 connected tothe'v levers 'above' the operating 'mechanism for -said bars a nd said bars and not operate the same.

are energized at the beginning of a total-taking (cycle. A bearing 3Ifl on the movable plate 28! 'pivotally supports bifurcated arms 3H and 342 disposed with respect to their bars I19 and I84 that when the solenoids are not energized and the framework is advanced by the arm 283, the

i nterposers will pass beneath the reduced end of However, 'when said solenoids are energized, the interposers will be raised and thus align themselves 'withthe extremities of their respective bars H9,

I34 so that upon advancement of the framework,

said bars will also bev advanced to operate the activated pins I85 at the intersection of said bars with the cross bars I 46 assigned to those type bars which are to be suppressed by the pawls M8 7 to prevent printing of totals by said type bars.

"Solenoids3 I and '3 l5, arranged on the opposite .sideof the bearing 35%] from the solenoids 338, 333

are energized in the initial stage of the cycle following a total-taking operation and are utilized to controlthe operation of bars I80 and I83, re-

jspectively, assigned to A and B- group indications, ;.where by type bars employed for printing code designations maybe suppressed at all times ex- "cept during the first printing of a code designaftion which occurs after each total-taking operation has been completed. The core of solenoid :3I5 is directly connected to the rearend of an interposer 3II, associated with the bar IE3 and pivoted in bearing 3H3, and the solenoid 3H5 is v, similarly connected to the pivotedinterposer 3J8 which controls the bar I83, Said 'interposers 'have their forward ends normally aligned with the adjacent extremities of their respective bars I I 80,1 83 and will thus operate the latter upon each advancement of the framework as long as the I85 between said bars and the cross bars I46 j assigned to the groupindication type bars will fnot be operated to suppress the latter bars which willthen rise to print the proper code designation.

The timing shaft I52, in addition to controlling jthe'o'perations just described, also operates the print-controlswitc'hing unit generally indicated at 3l9- (Fig. 5 through gearing 323 which drives the cam shaft 32! of said unit. On said shaft 32! are a plurality of cams generally indicated at 322 and designed to operate micro-switches generally indicated at 323 for controlling, at predetermined intervals, the closing and opening of various circuit connections associated Withcertain printing operations of the machine, as fully explained in the aforementioned co-pending application.

Type bar operation The upper sections of the type bars I41 (Fig. 3) are removably joined, at 326, to the lower sections 325 thereof which, in their lowered posihitions, r'est u'pon and depress the spring urged I plungers 326 mounted in a stationary member 321 so that said' plungers will 'impart an initial impetus to the type bars at the beginning of their upward movement toward printing positions. The lower end of the section 325 of each type bar is engaged by one end of an operating arm 328, the other end of which is pivoted at 329. The type bars are urged upwardly by the springs 330 and are controlled in such upward movement by the common bail 33I which oscillates about the same axis as the arms 328 and engages them to control their upward movement under the in fiuence of said springs until the type bars are arrested, whereupon the bail moves upwardly in dependently of the arms. Said bail is operated in synchronism with the action of the previously described scanning device 2H so that the type bars will be arrested in proper positions by the action of the upper transfer unit I32 which is under the control of the analyzer and which, in turn, controls the arresting pawls I48. The subsequent downward movement of the bail 33 I, following the printing operation later to be described, engages the'same with the arms 328 'of all operated type bars to restore the latter to their lower positions at the conclusion of a machine cycle.

To oscillate the bail 33!, the ends of its supporting frame are connected by links 332 to crank arms 333 secured on the rock shaft 334. Said shaft is operated from the main cam shaft 50 (Figs.'2, 5 and 11) by the complementary'cams '335 thereon, which areengaged by the two rollers of a follower 333 secured on the rocking stub'shaft 333. An arm 333 on the latter'shaft is connected, by a link 339, to a similar arm 340 on one end of the shaft 334 so that oscillatory motion is transmitted thereto from said cams 335 to raise and lower the bail 33!. 1

After the type bars have beenarrested in their raised position but before the printing operation is performed, it is desired to accurately align the type with elements of the printing mechanism. For this purpose there is provided an aligning bail 325a (Fig. 3) mounted on a rock shaft 326a and supporting a pivotal pawl 327a for each type bar by means of the crank arm 328a and the rod 329a which forms the pivot for said pawls. A cam 33% (Figs. 4, 5 and 12) on the shaft llta controls the bail 325a and, for this purpose, is connected by follower 33m secured on the rock shaft 332:. One end of the latter shaft carries an arm 333a engageable in the bifurcated end of an arm 334a on the adjacent end of the shaft 326a so as to rock the same to move the bail toward and away from the type bars. In operation, the bail is moved inwardly by said cam as soon as all type bars have reached their printing position and, in so doing, the pawls 327a are engaged with the slopes of the teeth 335a of said bars and, due to the slight inclination of the pawls, will thereby engage the teeth and lower said bars slightlyto thus position their type properly for the printing operation that immediately follows. At the conclusion of said operation, the type bar restoring bail 33! starts its downward movement and, at substantially the same time, the bails I54 and IE6 (Fig. l) disengage the arresting pawls I48 and 55? from said bars. Therefore, in order to prevent said bars from movement upwardly under the influence of their springs'338 before the bail 335 engages the bars to move them downwardly, the pawls 321a remain in their operative position in engagement with the teeth 335a until the type bars have been fully restored, whereupon the said cam 330a acts to rock the bail 325a and its pawls to normal or inoperative position.

Accumulatorg'posz'tion control unit Thisunit, which is :best illustratedin .Fig. 3, is-"des-igned "to control the adding, subtracting :and neutral positions-of the accumulators l9l,

' I92: in accordance with the'settings of the trans ,fer pins269 ofthe auxiliarysection of-thelower transfer unit I33 and their'eifect upon the feeler ;-members 2 l 6- which form part of the control unit. The latter comprises a frame 355 removably .:mounted between the walls 35, 31 of the machine .andsituated beenathtsaid auxiliary section of theunit I33-.so' as-to locate the feelers 2l0-in woperative association with the pins 269 to .be {thereby controlled during each cycle of 'operation. For each feeler 2), which is individual to a set ofupper and lower accumulators and is "piVote-d'on a vertically movable bar 356 urged -upwardly by springs 356a, there is provided a -.sli'ding interposer 351 engaged by the lower end of its feeler so as to be adjusted horizontally ithereby toeither one of three positions dependme upon the position assumed by said feeler when it engages'said pins 209. Said three positions of the interposer correspond to the adding, subtracting and-the neutral positions of its'set :ofaccumulators and are identified on the upper edge of the interposer by shoulders 358, 359 and 360,:respectively, all in different ,planes or at :different heights and each adapted, in accord- .rance with the position to'which the interposer .ihas been adjusted by its feeler, to vertically align itself with a-stop lug 361 .on the vertically movsable :control bar .362 In the raised position of said bar 362. its lug 36l .is elevated slightly above ithe highest shoulder 359 sothat it will not interfere with the free slidingadjustment of the interposer 351. Said bar 362 carries the upper and slower accumulatorpositioning slides 363 and 364 fassociated, respectively, with the accumulators NH and I92, and controlsthe horizontal location .of said slides relative to said accumulators by 'i'theiextent of the variable'downward movement :of the bar which is, in turn, controlled by engagermentof the lug 36! with one of the'shoulders :of the interposers351. Thus, if said lug is aligned "with'the shoulder 359,'then when the bar 362 :hasbeen lowered a slight distance, the lug will engage .said shoulder to arrest the downward :movement of the bar. When so arrested, the

iinner reduced extremity 365 of each slide 363,

364 willbe aligned with the upper plates 341 of ':the accumulators so that when the slides are amovedinwardly they will contact the adjacent sends of said plates 34] to cause'reverse move- :ments of the accumulator plates which move- '*ments, in'the instance being described, will posittion the'wheels 343 for operative engagement with the upper and lower accumulator racks 366 and 361 carried by the lower section 325 of the associated type bar when the accumulators are advanced toward said bar'in timed relation to the downward or upward movement thereof, de- I pending upon whether an accumulating or totalizing operation is-to be performed. The adding position of the accumulators, shown in Fig. 3, is similarly controlled by shifting the interposer 351 "to align its lowermost shoulder 358 with the lug '36! so that downward movement of the bar 362 will be arrested in the position in which the ends -3650f the slides 363, '364 will be aligned with the lower accumulator plates 342 to thus advance -the wheels 344 and retract the wheels 343 when isaid slidesare :operated. .The third or neutral position of the accumulators isattained by aligning the shoulder -.-360 of the interposer-351 with *the lug 36 I so that the .bar '3 62 will be. arrested in its intermediate position wherein theends 365 of the slides 363, 364 will be disposed inalign- .ment with the space between .the accumulator plates -so that as the slides are -operated,--said plates will be engagedaby the shoulders formed by said ends 365 and thus-be shifted to a-position which will adjust both wheels-343,344 ,to

neutral.

The control bars-362iassociated with the vari ous accumulators are raised to their elevated positions before the conclusion of a cycle ..of operation and, at the beginningof. a succeeding cycle and before the type bars. start-their.. up ward movement, thebars 356 are raised to cause their feelers 2 I0 tosensethe conditionestablished by their respective pins. 209 and associated .bails I93 to I98 to-thereby-adjust the variousinterposers 351 to proper position before .the ,bars 362 start downwardly. .When all.said bars.362 have been arrested intheirdownward movements bythe interposers, .the slides 363, 364 are-operated to adjust .the .accumulators to the desired position and are then immediately retracted, and before the conclusion of said succeeding cyclepf operation the bars362 are againelevated.

The bars 362 are underthe controlof acornmon bail 368 which engages an extension 3690!! said bars, and which iscarried by the-.arms..310 secured to the rocker -shaft31l. Said shaftalso carries a crank 312 ,connectedto the .upper ends of links 313, thelower ends ofwhich-are-joindd to a follower bell crank 314 engageable with the cam 315 securedon the. maincam shaft 50.and operable to actuate said bail 368.in..the timed relation above mentioned.

The bars 356 -are restored bya common baili316 engageablewith the lower ends of said bars and carried by arms 311 mounted on therockshaft 318. A crank 319 onsaid rock shaft is connected to the upper end of a link 388thelower end .of which is joinedto a bell crank 38l havingalfollower engageable with the cam 382 mounted on the shaft 58 alongside the cam:315. Saidcam 382 moves the bail-316 upwardly at the beginning of a cycle to permit the bars 356 to be.moved upwardly by their-springs356a so as to allow the feelers 2 I 8 to engage with the pins-289 andlthereby effect adjustment of the interposers 351, after which said bars 356are restored by said bail. 316.

The slides 363.and 364 are controlled, respectively, by thecommon bails 383 and 384 connected by arms 385 to the rock shafts 386 and 381. r Cranks 388 and 389 secured to the shafts 386-and 381 (Fig. 2) are connected'to the upper ends of links 398 and :39! the lower-ends of whichare pivotedto a bell crank 392 having followers-393 and 394 which engage complementarycams 395 also mounted on the shaft 50. Said cams operate the bell crank 392 tosimultaneously rock the shafts 386 and 381 in opposite directions so asto cause the bails 383,384 to advance the slides 363, 364 to perform their respective functionsas previously described, and to then retractfsaid slides preparatory to their nextoperation.

Accumulator operating mechanisms The upper and'lower accumulator frames including the portions 341, '-348 are reciprocated in timedrelation tot-he rise and fallof the type bars to engage either the wheels 343 or '344,,de pending upon whether there isto be a subtracting or adding operation, with the accumulator .racks 366 and 361.. mounted on saidbars. When adding-or accumulating, said frames are advanced towards said, type bars just before the latter start their downward movement, and during a total-taking cycle the frames are advanced prior to the rise of said type bars.

The upper frame in which the sub-total accumulators l9! are supported, is reciprocated by a rock shaft 396 connected, by arms 391 (Fig. 2), to the ends of said frame, while the lower frame for the grand total accumulators !92 is operated by a rock shaft 398 connected, by arms 399, to the latter frame and both of said shafts are differentially controlled with relation to their time of operation so that their respective frames may be advanced, as above mentioned.

With respect to the sub-total accumulators and as shown in Figs. and 6, the shaft 396 is connected, by the crank arm 400, to the upper end of alink 40! the lower end of which is movable relative to a vertically disposed lock plate 402 securedon' the block 403 attached to the base 30 of the machine, said plate 402 being spaced from a similar plate 404 also secured on the block 403 and associated with the operating mechanism of the accumulators I92 presently to be described. Said plate 402 is provided with an inverted U- slot 405 in which is movable alug406 carried by the lower end of the link 40! which is adapted to' assume a central or neutral position (similar to Fig. 5), a second position to the left, as shown in Fig. 6, when an adding or substracting operation is to be performed, and a third position to the right during a totaling cycle, and at the conclusionof each cycle the link is restored to its neutral position. To effect the adjustment of said link to its-second position during an adding cycle, there is provided an add solenoid 401 which, when'energized, swings the bell crank 408 to the position of Fig. 6 and, in'so doing, rocks the shaft 409 -to which said bell crank is attached. Thereupon, the links 4l0 connecting said bell crank with the link 40! swings the latter to the left. l he energization of the solenoid 401 occurs at the moment that an oscillatory bail 4!! mounted on the shaft 4 2 reaches its uppermost position under the control'of the complementary cams 4!3 (Figs. 4'and 11), whereupon the bail and the link 40! are coupled together by engagement of a pin M4 on the'bail in a notch M5 in the edge of the link. Under the influence of the cams M3, the bail 4!! and the link 40! then move downwardly, with the lug 406 on the link entering the left hand branch of the slot 405 to thus prevent a return movement of the link 40! toward its neutral position so that the link and bail will remain coupled. fhe downward movement of said link rocks the shaft 396 counterclockwise to thereby advance the upper accumulator frame toward the type bars the instant before'they start their restoring movement. Under the influence of the cams M3, the bail 4!! dwells in its lower position while accumulation proceeds, and at the conclu-- sion thereof and after the solenoid 401 has been de-energized, the bail again rises and, through its coupling to the link 40!, rotates the shaft 396 clockwise to retract the accumulator frame. When the bell crank 408 is operated by the energization of the solenoid 401, as described, a pin M6 on said bell crank raises a restoring lever 4!1 against the tension of spring 4!8 connecting said lever with a similar lever 4!9 so that upon restoration of the link 40! to its raised position by the bail 4!! and consequent disengagement of the lug 406 from the left branch of the slot 405, the spring 4 8 will become effective, through the lever M1 and the pin 6, to swing the bell crank 408v downwardly and thus operate the link M0 to return the link 40! to neutral position. The piv-, otal movement of the lever 4! 1, and consequently of the link 40! to neutral position, is limited by engagement of the end 420 of said lever with a stop 42!.

When a change of designation takes place to initiate a total-taking cycle, the sub-total solenoid 422 (Fig. 6), located directly below the solenoid 401, is energized before the type bars start their upward movement. The solenoid 422 operates to pull the bell crank 408 downwardly to reverse the previously described shifting of the link 46! so that its lug '406'will be moved from its neutral position into alignment with the right hand branch of the slot 405. This occurs when the bail423 mounted on shaft M2 is in its upper= most position under'the control of the comple mentary cams 424 on the shaft 50; As a result of the shifting of the link 40!, its notch 425 will receive the pin'426 on said bail 423 to thus couple the latter to said link, and upon downward move ment of'the bail, with the lug 406 entering'the' right hand branch of the slot 405, the shaft'396' will be turned counterclockwise to advance the. upper accumulator frame as previously described but prior to the upward movement of the type bars. Lowering of the bell crank 498 causes it'sj pin 4H5 to also rock the lever 4!9 downwardly against the tension of the spring 4!?) so that the latter will become effective to restore the" link 40! to its neutral position when the bail 423 swings upwardly" under the influence of the c'ams424, the solenoid 422 having previously become de'-' energized.

Referring now to Figs. 5 and 7, the control of the rock shaft 398 whichadvances and retracts the lower accumulator frame whose accumulators are utilized for grand total'operatiohs, will now be described. Said shaft 396 being connected by arms 399 to the lower accumulator frame, is also connected, by the crankarm 428, to the upper end of the link '429 similar tobut shorter than the link 40! and having a lug 436 movable in the slot 43'! formed in the lock plate 404. The link 429 is provided in its edges with the opposed notches 432 and 433 adapted, respectively, to receive pins 4 l4 and 426 of the two bails 4! and 423 when said link is shifted from its neutral position to the left during a grand total adding op: eration or the right (Fig. 7) during a totalizing operation. When it is desired to accumulate in the grand total accumulators I92, the grand total add solenoid 434 is energized during the adding cycle and with the bail 4!! in its uppermost position. Operation of said solenoid swings the bell crank 435 clockwise about the shaft 409 and, through the connection 436, the link 429 is swung to the left so as to couple the same with the bail 4 which thereupon moves downwardly with said link to rock the shaft 398 and thus advance the lower accumulator frame. During this operation the lock plate 404 performs the same function as the plate 402 in preventing restorationof the link 429 to neutral position before the bail 4!! is again raised. The adjustment of the link 429 to its right hand position, as shown in Fig. '7, prep.- aratory to a grand totalizing operation, is accom-, plished through the energization of the total solenoid 43'! which occurs before the type bars start upwardly and which reverses the previously described operation of the bell crank 435 to shift the link 429 to its right hand position where it will be coupled to the bail 423 so that, under the ascents u 19 V. 1 control of the cams 424, the lower accumulator frame will be advanced to accomplish the rolling out'of the totals from the "accumulators I92. Levers 438 and 439, similar to levers 411 and 419 and connected by the spring 449, are operatively associated'with a pin 44l on the bell crank 435 so as to effect restoration of the link 429 to neutral from either of its shifted positions when the solenoids 434 and 431 are de-energized and the bails 4H and 423 have been raised.

Carry over units "Each of these units, as shown in Fig. 3, comprises a stationary frame 442 mounted on the back of the machine in proximity to and across its associated bank of accumulators. In said frame are mounted the carry over slides 443 yieldably urged inwardly by the Springs 444 and each having its inner end disposed between the accumulator rack 366 or 361 of one type bar and the adjacent type bar of the next higher order so as to be controlled by its associated accumulator and, in turn, control the accumulator rack of the latter bar. This control involves either the arresting of said higher order rack in its zero position just prior to the time its type bar reaches the extent of its downward movement, as when no carry over is to be effected, or the continued movement of said rack with its type bar in which event said rack will carry one into the accumulator wheel of the higher order. Said control is accomplished by a laterally extending stop lug 445 struck from the slide 443 and either disposed in the path of the shoulder 446 on the higher order accumulator rack to arrest the same at zero position, or which is removed from said path upon operation of the slide 443 when a carry over operation is to be accomplished. Said slide 443 is operated either by a high tooth on the subtracting wheel 343 engaging the projection 441 at the inner end of the slide or by a high tooth on the adding wheel 344 contacting the pro- J'ection 448 of said slide. In either event the slide is forced outwardly against the tension of its spring 444 and when this occurs a normally tensioned leaf spring 449 carried on a vertically movable frame 450 engages the extremity of the projection 45! on said slide to retain the same in its operative position. When the slide is thus adjusted, its lug 445 will be out of the path of the shoulder 446 of the descending accumulator rack carried by the type bar of the next higher order and said rack will therefore travel with said bar to the extent of downward movement of the latter and thus accomplish the carry over into the accumulator wheel engaged with said rack, whereupon the accumulator is retracted as previously described. Before the type bar again starts its upward movement in the next cycle of operation, a cam 452 (Figs. 4, 5 and 11) on the shaft 50 operates a follower 453 mounted on the shaft M2 and connected to a link 454 which is joined to the rock shaft 455 by a crank 456. Said shaft 455 is connected by the cranks 451 to links 458 pivoted to the lower end of the vertically movable frame 450 and through the foregoing connections said cam elevates the frame. When this occurs, a common restoring plate 459 for each of the carry over units and mounted on said frame 450, moves upwardly to engage the shoulders 469 of any of the accumulator racks 366 or 361 which have been moved downwardly to carry over position. Said engagement raises said racks to their zero positions shown in Fig. 3. At the same time, the springs 449 of the oper- 20 ated slides m are carried" upwardly '-withthe frame 450 and are thus disengaged from the extremities of the projections 45!, allowingth'e springs 444 to restore said slides inwardly 'so-that their lugs 445 willagain be positioned beneath the. shoulders 446 of the racks to thus retainthem in zero position in which they must be'in -the event that a total-taking cycle is initiated and the accumulator wheels are thrown into mesh with their racks before the type bars start upwardly. As soon as the slides 443 have been re-; stored, the cam 452 permits the frame 450 'tomove downwardly under the influence of the springs 46f connected to the cranks451.

Accumulator split Means are provided for splitting the 'accumu-j, lators and thereby disabling the carry overmech-f' anisms at any desired point or points. For this. purpose, the carry over unit has mounted on its frame 442 an interposer 462 for each accumulator rack. Each interposer is slidable from a normally inoperative position shown in Fig. 3 to an inward operative position wherein it is frictionally held with its inner end disposed in the path of the shoulder 463 on the associated accumulator rack so as to arrest the downward movement of said rack at its zero position and thus prevent it from accomplishing a carry over operation into the next higher order.

Printing unit This unit comprises the hammer control mechanism, the hammer lock-out, and means for elim-s inating zeros to the left and right of significant figures.

The printing is accomplished by a firing pin 464 for each type bar which is operated to strike the aligned type 465 when the associated hammer 466 is released and thereupon propelled by its actuating spring 461, thus causing the type to print upon a record sheet mounted on the platen 468. Any well knowntype of paper and ribbon feed mechanisms may be employed in conjunction with said platen. The hammers 466 are mounted to swing about the shaft 469 and, after performing a printing operation, are restored by the common bail 416. This restoration is accomplished by a cam 41I (Fig.2) mounted on the shaft I16a just inside the wall 31 and adapted to operate a follower 412 coupled to a crank 413 on the shaft 469. A second cam 414 on said shaft controls a follower 415 on the shaft 416 (Figs. 3 and 5) to rock said shaft and thereby, through its bell cranks 411, actuate the reciprocatory hammer release bail 418 to release the hammers at the moment the type bars have reached their printing position, as will presently be more fully explained. The bail 418 is thereafter restored by the springs 419 connected'to the bell cranks 411.

To accomplish the release .of the hammers, each has associated therewith a rockingly supported and vertically movable interposer 480 which, in the position of Fig. 1, is inoperative and permits the bail 4.18 to pass beneath the shoulder formed by the reduced lower end of the interposer so that the hammer 466 will not be released with the type bar in the blank position shown. However, should the type bar move upwardly and be arrested to align its uppermost or 0 type with the pin 464, this movement permits the lever 481, the rear end of which engages .under a shoulder on said bar, to turn clockwise one step under 'the influence of the spring 482 

